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NATURAL HISTORY · CATALOGUE RECORD

Black Splitfin

Xenotoca melanosoma Fitzsimons, 1972

Source-backed taxonomic record

Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.

Identity & source status

Scientific name
Xenotoca melanosoma Fitzsimons, 1972
Name authority
Fitzsimons, 1972
Common name
Black Splitfin
Rank
species
Accepted status
accepted
Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Order
Cyprinodontiformes
Family
Goodeidae
Genus
Xenotoca
Extinction status
Not supplied by this source

Source habitat flags: Marine: no · Freshwater: yes · Terrestrial: no. These do not form a complete habitat description.

Classification family tree

Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.

  1. domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
  2. kingdomAnimalia
  3. phylumChordata
  4. subphylumVertebrata
  5. infraphylumGnathostomata
  6. parvphylumOsteichthyes
  7. gigaclassActinopterygii
  8. superclassActinopteri
  9. classTeleostei
  10. orderCyprinodontiformes
  11. familyGoodeidae Jordan & Gilbert, 1883
  12. subfamilyGoodeinae Jordan & Gilbert, 1883
  13. genusXenotoca Hubbs & Turner, 1939
  14. speciesXenotoca melanosoma Fitzsimons, 1972

Close classified relatives

No other member of this genus is present in the selected snapshot.

Browse 36 records assigned to Goodeidae.

Source literature & publication evidence

References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.

  1. Fitzsimons, J. M. (1972). A revision of two genera of goodeid fishes (Cyprinodontiformes, Osteichthyes) from the Mexican Plateau. Copeia 1972, 4. https://doi.org/10.2307/1442732 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references

Origins, evidence & remaining research

Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.

Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record. A suitable sourced image remains to be added.

Dataset citation & attribution

This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11

Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.

Stable key: col:7G7WN. Classification follows source parent identifiers. English common names may vary by region.